{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF36-0BC0, 3-pole molded case circuit breaker, 125 A rated continuous current, TM240 overcurrent release, 187 kA breaking capacity at 240 V, line protection version with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"Rated continuous current Iu is 125 A, and the TM240 thermal-magnetic overcurrent release handles the overload and short-circuit protection internally — no separate relay needed. Breaking capacity is the headline number here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The 690 V figure (17 kA) tells you it can also serve 690 V industrial networks, though the fault capability drops as voltage rises. Thermal derating is published per ambient temperature: the breaker holds 125 A from 40 °C through 50 °C, then steps down to 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. Dimensions: 130 mm height, 76.2 mm width (standard 3-pole MCCB width for the 3VA frame), 70 mm depth. The auxiliary trip is a separate order code 3VA9608-0BB11 if you need to add a shunt trip later. For a main breaker that sees infrequent operation (once a week for maintenance), that's decades; for a breaker used as a daily disconnect, it's still a long service life. The trip indicator is not present on this variant — you'd need a different order code if visual trip flag is required. For a BOM line that needs this exact order code, the fit is confirmed by the ratings above: 125 A continuous, 3-pole, TM240 release, undervoltage release, 2 aux switches. The breaking capacity at your system voltage (187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 17 kA at 690 V) must exceed the available fault current at the installation point — that's the main coordination check.","metaTitle":"Siemens 3VA1112-5EF36-0BC0 MCCB, 125 A, 187 kA at 240 V","metaDescription":"Siemens SENTRON 3VA1112-5EF36-0BC0 molded case circuit breaker, 125 A rated current, 187 kA breaking capacity at 240 V, 3-pole, line protection, undervoltage release, IP40 front. S","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"120 A","at 60 °C":"117.5 A","at 65 °C":"115 A","at 70 °C":"112.5 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"125 A","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Adjustable response value current / lr min.":"88 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=70644&mlfb=3VA1112-5EF36-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1112-5EF36-0BC0 include an undervoltage release?","answer":"Yes, an undervoltage release (UVR) is integrated. The auxiliary contacts are 2 HQ switches factory-fitted. No shunt trip is included — the auxiliary trip order code 3VA9608-0BB11 is separate if needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0BC0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1112-5EF36-0BC0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}